daa side affect

ok so ive been on d aspartic acid for over 2 weeks now and have seen good gains.everyday i take it my testicles pulse and its quite annoying..i know most of you are not doctors but could this be bad?should i stop taking it?

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BA in Nutrition Science

MAN Sports Rep
Disclaimer: The statement above reflects that of my own opinion and in no way that of MAN Sports. Our products are not intended to diagnose, treat, cure, or prevent any disease.
Buy two ISO-AMINO Get one FREE
Buy 2 Get 1 FREE NXT
1200 pound club
PM me for personalized workout routines and diet plans
BA in Nutrition Science